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ID
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L-6-81-NP
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Abstract
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Chief Scientist: Andy Stevenson. Geophysical data (airgun,
magnetics, dopplersonar, integratednavigation, RhoRho,
transitsatellite, gravity, 3dot5khz, 12khz, magnetics) of
field activity L-6-81-NP in Off British Columbia and
Washington, Northern Pacific from 05/31/1981 to 06/07/1981
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Chief Scientist
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Andy Stevenson
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Activity Type
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Geophysical
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Platform
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Samuel Phillips Lee
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Area of Operation
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Off British Columbia and Washington, Northern Pacific, North Pacific Ocean
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Bounding Coordinates
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57.74495
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-152.53345 -124.04906 |
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44.60095 |
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Ports
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leave Newport, OR
arrive Kodiak, AK
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Dates
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05/31/1981 (JD 151) to 06/07/1981 (JD 158)
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Analog Materials
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list
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Crew
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Equipment Used
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airgun
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magnetics
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dopplersonar
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integratednavigation
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RhoRho
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transitsatellite
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gravity
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3dot5khz
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12khz
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magnetics
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NGDC Overview
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! Converted to time format with year at start.
!
DATA COLLECTION OVERVIEW (use NGDC GEODAS CD to retrieve data)
MCG Data Collection ID --- L681NP
Institution Data Collection ID --- L681NP
NGDC ID --- 06050055
Funding --- (unspecified)
Project, Cruise & Leg --- (unspecified)
Study region --- +57.00000,+44.00000,-148.00000,-124.00000
Chief Scientist(s) --- Andy Stevenson
Name of vessel --- Lee (surface ship)
Date field data collection started --- 05/31/81 LV NEWPORT,OREGON
Date field data collection ended --- 06/07/81 AR KODIAK,AK
Parameters surveyed ---
Bathymetry: surveyed, contained in data file
Magnetics: surveyed, contained in data file
Gravity: surveyed, contained in data file
High-resolution seismics: (unspecified)
Deep penetration seismics: (unspecified)
Format ---
(I1,A8,F5.2,4I2,F5.3,F8.5,F9.5,I1,F6.4,F6.1,I2,i1,3F6.1,I1,F5.1,F6.0,F7.1,F6.1,F5.1,A8,4I1)
Date of data input to NGDC --- 06/17/87
Contributing institution --- USGS Branch of Pacific Marine Geology
Country --- United States
Navigation instrumentation --- SATNAV,LORAN-C,SONAR DOPPLER
Position determination method --- PRIM-SATNAV SEC-INTEGRATED NAV
Bathymetry instrumentation --- 12KHZ NARROW 1 SEC, 3.5 KHZ WIDE 1 SEC
Additional forms of bathymetric data --- RECORDER ROLLS
General rate of bathymetry in file --- 1.2 minutes
General collection rate of bathymetry --- 20/SECONDS
Assumed sound velocity --- 1463.0 m/sec
Bathymetric datum code --- No correction applied (sea level)
Bathmetry interpolation scheme --- (unspecified)
Magnetics instrumentation --- PROTON PRECESSION MAG-GEOMETRICS G-801
Additional forms of magnetics data --- ANALOG RECORDS
General rate of magnetics in file --- 1.1 minutes
General collection rate of magnetics --- 4 seconds
Magnetic sensor tow distance --- 213 meters
Magnetic sensor depth --- (unspecified)
Two sensor horizontal separation --- (unspecified)
Residual magnetics reference field --- IGRF-75
Method of applying residual field --- LINEAR INTERP. BETWEEN NAV POINTS
Gravity instrumentation --- L&R S-53
Additional forms of gravity data --- ANALOG RECORDS
General rate of gravity in file --- 1.1 minutes
General collection rate of gravity --- 15 seconds
Theoretical gravity formula --- International 1930
Reference system --- System IGSN 71
Corrections applied --- DRIFT CORRECTIONS
Starting land tie --- 968848.6 NEWPORT OR MARINE SCI CENTER
PIER
Ending land tie --- 968848.4 KODIAK, AK COAST GUARD PIER An
Seismic instrumentation --- (unspecified)
Formats of seismic data --- (unspecified)
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Got Help?
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For L-6-81-NP, we would appreciate any information on -- contract, days at sea, dive count, funding, information specialist, information to be derived, kms of navigation, national plan, notes, organization, owner, project, project number, publications, purpose, scanned materials, seismic description, station count, station description, submersible, summary, tabulated info.
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